What best explains why floodplains encouraged settlement in the fertile Crescent?

omg stop xd you need to chi

answer; the president uses mass media to gain support for policies;

i think it's d because a "rythem" is a

1)a particular type of pattern formed by rhythm.

2)a strong, regular, repeated pattern of movement or sound.

3) the systematic arrangement of musical sounds, principally according to duration and periodic stress.

so, d mabye.